Data Transmission Service:Connect an on-premises database to DTS by using CEN

Procedure

1. Attach the VBR or the CCN instance that is connected to the on-premises database to the same CEN instance. For more information, see Attach a network instance.

2. Optional:In the CEN console, configure the AnyTunnel service to allow the VBR or the CCN instance to access DTS. For more information, see Configure the AnyTunnel service.

   Note

   You can skip this step. When you configure a data migration or synchronization task, DTS automatically configures the AnyTunnel service.

3. Configure a route between the on-premises database and DTS by using one of the following methods:

   • Advertise the BGP CIDR block to allow the VBR to learn the route information.

     1. Log on to the Express Connect console.
     2. In the left-side navigation pane, choose Physical Connections > Virtual Border Routers (VBRs).
     3. Select the region where the virtual border router (VBR) resides and click the VBR ID.
     4. Click the Route Entries tab, and then click Add Route Entry.

     5. Modify the route entry and then click OK.

        Parameter	Description
        Destination CIDR Block	Enter the CIDR blocks of DTS servers. Note For more information about the CIDR blocks of DTS servers in each region, see Add the CIDR blocks of DTS servers to the security settings of on-premises databases.
        Next Hop Type	Select VPC. The VBR forwards data to the selected VPC.
        Next Hop	Select the next hop instance that receives the data. Note If a route to another Alibaba Cloud service is configured, you must select the same next hop instance. This avoids access exceptions that are caused by overlapping CIDR blocks.

     6. On the Advertised BGP Subnets tab, click Advertise BGP Subnet and enter the CIDR blocks of DTS servers. For more information, see Advertise the BGP CIDR block.

   • Add a static route to allow the on-premises database to access DTS.

     Note

     For more information about the CIDR blocks of DTS servers in each region, see Add the CIDR blocks of DTS servers to the security settings of on-premises databases.